According to Guilfoyle’s Instagram announcement this week, she’s left her role as weekend host and legal analyst to pursue opportunities working on behalf of President Trump. She has been dating his son Donald Trump Jr. since the spring, and will now serve as vice chairwoman of America First Policies, a nonprofit organization that promotes the Trump platform.

The official word from Fox News, according to a statement to Yahoo Entertainment, gives little indication of what prompted Guilfoyle’s departure. The network confirmed only that it had “parted ways” with her.

But sources have insisted that there’s more to the story. HuffPost has now reported that Guilfoyle’s exit was allegedly prompted by an investigation into sexual misconduct claims made against her. The publication spoke to 21 unnamed sources, some of whom are said to have connections to Fox News and 21st Century Fox.

According to the HuffPost report, Guilfoyle was allegedly told to leave the network after Fox News’s human resources department looked into claims of inappropriate behavior — including that she showed co-workers photos of naked men.

It also alleges that Guilfoyle sought the help of 21st Century Fox executive chairman Rupert Murdoch — apparently to no avail. A Murdoch spokesperson declined to comment, according to HuffPost.

The investigation reportedly began last year, with sources claiming that HR warned Guilfoyle about her conduct. The network — which has a history of sexual misconduct scandals, resulting in the exits of Bill Shine, Bill O’Reilly, and Roger Ailes — is said to have given Guilfoyle time to find new employment rather than fire her outright.

Guilfoyle’s legal team has disputed these claims and served HuffPost with a legal notice.

“Any accusations of Kimberly engaging in inappropriate workplace conduct are unequivocally baseless and have been viciously made by disgruntled and self-interested employees,” John Singer, a lawyer who represents Guilfoyle, told HuffPost. “During her lengthy and decorated tenure with the company, Kimberly was beloved, well-respected, and supportive of anyone she ever met. It’s utterly preposterous that there are those who are nefariously and greedily twisting innocent conversations amongst close friends into much more than what it actually was for financial gain. Kimberly has happily moved onto the next chapter of her life and hopes others will do the same.”

Fox News declined HuffPost’s request for comment. Yahoo Entertainment has contacted the network for a response.